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Finding the Fourth Proportional to 373,328.60, 561,159.30 and 366,330.20

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Solution

The fourth proportional to 373,328.60, 561,159.30 and 366,330.20 is: 550,639.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,328.60 : 561,159.30 = 366,330.20 : x
  2. Step 2: Convert to fraction form
    373,328.60/561,159.30 = 366,330.20/x
  3. Step 3: Cross multiply
    373,328.60x = 561,159.30 × 366,330.20
  4. Step 4: Simplify right side
    373,328.60x = 205,569,598,600.86
  5. Step 5: Solve for x
    x = 205,569,598,600.86/373,328.60
  6. Step 6: Final answer
    x = 550,639.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.